Qt: Implement logging widget (+ configuration)

Source/Core/DolphinQt2/Config/LoggerWidget.h

@@ -0,0 +1,75 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QDockWidget>
+
+#include <mutex>
+#include <queue>
+
+#include "Common/Logging/LogManager.h"
+
+class QCheckBox;
+class QCloseEvent;
+class QComboBox;
+class QListWidget;
+class QPushButton;
+class QRadioButton;
+class QVBoxLayout;
+class QTabWidget;
+class QTextEdit;
+class QTimer;
+
+class LoggerWidget final : public QDockWidget, LogListener
+{
+  Q_OBJECT
+public:
+  explicit LoggerWidget(QWidget* parent = nullptr);
+  ~LoggerWidget();
+
+  bool eventFilter(QObject* object, QEvent* event) override;
+
+private:
+  void UpdateLog();
+  void UpdateFont();
+  void CreateWidgets();
+  void ConnectWidgets();
+  void CreateMainLayout();
+  void LoadSettings();
+  void SaveSettings();
+
+  void OnTabVisibilityChanged();
+
+  void Log(LogTypes::LOG_LEVELS level, const char* text) override;
+
+  // Log
+  QCheckBox* m_log_wrap;
+  QComboBox* m_log_font;
+  QPushButton* m_log_clear;
+  QVBoxLayout* m_main_layout;
+  QTabWidget* m_tab_widget;
+  QTextEdit* m_log_text;
+  QWidget* m_tab_log;
+
+  // Configuration
+  QWidget* m_tab_config;
+  QRadioButton* m_verbosity_notice;
+  QRadioButton* m_verbosity_error;
+  QRadioButton* m_verbosity_warning;
+  QRadioButton* m_verbosity_info;
+  QCheckBox* m_out_file;
+  QCheckBox* m_out_console;
+  QCheckBox* m_out_window;
+  QPushButton* m_types_toggle;
+  QListWidget* m_types_list;
+
+  QTimer* m_timer;
+
+  std::mutex m_log_mutex;
+  std::queue<QString> m_log_queue;
+
+  bool m_all_enabled = true;
+  bool m_block_save = false;
+};